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Title: Propagation of ion acoustic shock waves in negative ion plasmas with nonextensive electrons

Nonlinear ion acoustic shocks (monotonic as well as oscillatory) waves in negative ion plasmas are investigated. The inertialess electron species are assumed to be nonthermal and follow Tsallis distribution. The dissipation in the plasma is considered via kinematic viscosities of both positive and negative ion species. The Korteweg-de Vries Burgers (KdVB) equation is derived using small amplitude reductive perturbation technique and its analytical solution is presented. The effects of variation of density and temperature of negative ions and nonthermal parameter q of electrons on the strength of the shock structures are plotted for illustration. The numerical solutions of KdVB equation using Runge Kutta method are obtained, and transition from oscillatory to monotonic shock structures is also discussed in detail for negative ions nonthermal plasmas.
Authors:
; ;  [1] ;  [2]
  1. Theoretical Physics Division (TPD), PINSTECH, P. O. Nilore, Islamabad 44000 (Pakistan)
  2. (DPAM), PIEAS, P. O. Nilore, Islamabad 44000 (Pakistan)
Publication Date:
OSTI Identifier:
22220594
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 20; Journal Issue: 9; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ANALYTICAL SOLUTION; ANIONS; CATIONS; ELECTRON TEMPERATURE; ELECTRONS; ION ACOUSTIC WAVES; ION TEMPERATURE; KORTEWEG-DE VRIES EQUATION; NONLINEAR PROBLEMS; NUMERICAL ANALYSIS; PERTURBATION THEORY; PLASMA DENSITY; PLASMA SIMULATION; RUNGE-KUTTA METHOD; SHOCK WAVES